Its an XCVR2450, but I do *not* start any 'packet' transmissions. All I do, is to start both the flowgraphs, and just listen for packets.
On Sun, Feb 26, 2012 at 6:13 AM, Andre Puschmann < andre.puschm...@tu-ilmenau.de> wrote: > On 02/26/2012 10:38 AM, Apurv Bhartia wrote: > > Hi, > > > > I'm running Ubuntu 11.10 + UHD 003.004.000 + USRP2. > > > > I'm trying to run a transceiver script for OFDM, which has both the tx > > and rx flowgraphs (very similar to tunnel.py except the TUN interface). > > But, I can't seem to receive anything successfully in that case. Even > > the preamble correlation fails, it barely sees anything substantial in > > the air at the RF end. > > On the other hand, if I just disable the uhd_transmitter in the script, > > the receiver then works just about great. > > > > I've run the transceiver script earlier on USRP2 with the eth driver - > > could it be something to do with the UHD? Is it possible that the > > transmitter is in some way locking the receiver? > > > > P.S: Individually, tx and rx work just fine. > > You did not mention which daughterboard you're using. If it's the > XCVR2450 db and you continuously transmit you sort of block your > receiver indeed. That's because the XCVR2450 is only half-duplex. > > -Andre >
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